20 June 2013
⇐20130619 ⇐Week ⇐Rotation Today Rotation⇒ Week⇒ 20130621⇒

NOAA
7 Active Regions
11770
11772
11773
11774
11775
11776
11777

Flare Forecast
Flare Forecast
MM MotD

Coronal Holes


Today's Coronal Hole Properties
CHIMERA Number
Centroid
[Heliocentric]
Width
[°]
Area
[%]
< B >
[G]
< Φ >
[Mx]
1 E17N40
(-217",584") 		E58-W29
(87) 		10.9 -1.6 -7.8e33
2 E27N21
(-408",312") 		E34-E17
(17) 		0.8 -9.3 -2.4e33
3 W26N56
(229",772") 		W22-W30
(8) 		0.1 -0.6 -4.6e31
4 E03N13
(-41",194") 		E04-E01
(3) 		0.1 -2.6 -2.8e31

Note: Solar Monitor's coronal hole segmentations are performed by CHIMERA, a copy of which is available at: github.com/TCDSolar/CHIMERA.

The operations of the CHIMERA algorithm is described in a peer reviewed paper: arxiv.org/abs/1711.11476.

An extensive copy of coronal hole properties are available at: solarmonitor.org/data.

The latest positions of the coronal holes are given in heliocentric co-ordinates, and the region positions are valid on 20-Jun-2013 21:00 UT .